Workaround 1

1. Wallpaper advertising space on the AdServer link (Placement -General -> Wallpaper link)
2. Install snippets:
   This should prevent the writing of the iFrame in most cases.
   Note: For the implementation of special creatives such as Expandables, Floating-Ads, Tandem-Ads (Wallpaper, Hockestick, etc.), Triple-Ads, etc., the use of script code is necessary! These creatives do not work on IFrame placements. It is recommended to include this code even if no creative of this kind are booked!
   

   The following code should be included at the end of the page (in the code directly before </boddy>):

   <script type="text/javascript">
   <!--
   if(typeof(asm_initi) != "undefined"){asm_finishwriter();}
   //-->
   </script>

Workaround 2

deliver the wallpaper only an advertising space (singles day), and then to prevent the advertising space for the Sky over exclusion.

Also in this case, the snippet should be installed for safety. 

Workaround 3

Or conceivable would also control a AdMultiscript, but it would have to be made in the pages adjustments.